Round each amount to the nearest hundred to find a reasonable estimate of 7245 – 5680. A. 1200
B. 1300
C. 1400
D. 1500

9514 1404 393

  D.  1500

Step-by-step explanation:

7245 rounded to the nearest hundred is 7200. (Last two digits are less than 50.)

5680 rounded to the nearest hundred is 5700. (Last two digits are 50 or more, so we round up.)

Then the estimated difference is ...

  7200 -5700 = 1500 . . . . matches choice D

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116